Propeller-device for aeroplanes.



J. A. HORNE. PROPELLER DEVICE FOR AEROPLANES.

APPLICATION FILED APR-26. I911- Patented Sept. 24,1918;

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guide loops 41 through which pull cords or Means are provided for holding the sleeve 30 rigidly in position and reversing the position of the same to correspondingly reverse the position of the buckets. For the purpose of illustration a reversing mechanism is shown comprising a toothed segment 37 rigidly coupled to a support 38 attached to the frame 11. Extending from the sleeve 30 and preferablyintegral therewith is an arm 39 having a pawl device 40 pivoted thereto and adapted to engage in the notches of the segment 37.

two points to the notches in the segment 37. Extending from'the sleeve 30 are cable cables 4243 extend, the pull cables being both connected to the pawl 39. The cables are likewise provided respectively with stops 4445, initially spaced from the pawl 39.

, The pull cables lead to a point convenient to. the operator in the housing 10.

It will be noted that the chain wheels Ell-32 are the same diameter as the pinions 33-34, hence by moving the arm 39 one half of a revolution around the shaftv 27 the larger chain wheels 32 will cause the pinions 33-34 to rotate half a revolution, and thusreverse the position of the buckets upon the shaft. By this arrangement when the motor 14 is actuated theshafts 1516 will be continuously rotated together with the arms 24, and by holding the sleeve 30 and the chain wheels 3l-32 in fixed relation to the shaft, the open sides of the buckets will be caused to move constantly in a vertical position, or operating with a planetarymovement relative to the shaft, thus producing a feathering action.

The notches in the member 37 will be so disposed that when the pawl device 40 is engaged with the terminal notch at one side the buckets will be held with their open sides directed forwardly as shown in Fig. 1, then when the pawl device is disposed in engagement with the terminal notch at the opposite side the buckets will be reversed in position or with their open sides pointing rearwardly. By providing a plurality of notches the buckets may be disposed with their open sides obliquely to the vertical which may be necessary when employing the device in connection with an aeroplane. By employing thestops 44+45 it will be noted that when either of the cables is first pulled downwardly by the operator the first movement will not actuate the sleeve, but will release the pawl device 39, and then when the stop 44 or 45, as the case may be, comes in contact with the loops 41 the sleeve will be picked up and rotate to a required extent. If the buckets are to be entirely reversed in position the pull member 42 or 43.

will be actuated until the pawl 39 is opposite the terminal notch of the segment, and

The sleeve 30 is thus held stationary at either one of when the pull cable is released the pawl will fall by gravity into the adjacent notch and thus lock the mechanism and hold the bucket in position.

' The body portion of each of the buckets is provided with openings 46 closed by valves 47 hingedly united at 48 to the inner face of the body of the bucket at each side of a medial line; The valves 47 thus swing inwardly and admit air from the outside but will not permit air to pass from the inside of the bucket through the openings.

By employing the valves the resi ance of air at the return-stroke is materially decreased, while the forceofthe forward stroke is not diminished The action will be the same whether thebuckets, be employed upon air crafts. or water crafts,.as will be obvious. V j V The buckets and attachments may be constructed of any suitable material, but will be as light as possible consistent with. the strains to Which they will be subjected when in use. Y t 7 By this arrangement also the buckets may be reversed in position to cause the vehicle to which they are-attached to move forwardly or. rearwardly .as may be preferred. The mechanism for driving the shafts 1516 are independently arranged so that the shafts and the buckets with which they are associated maybe operated simulta neously or separately, o one shaft with its buckets rotated forwardly while the other is rotated rearwardly or viceversaa By this means the motion is undercomplete control" of the operator.

movement of the valves,- r V 7 Having thus described the invention, what is claimed as new is? p 1.- In propelling mechanism, abucket with one side open and the walls sloping from a medial line toward the open side, said bucket having openings spaced from the medial line with their contiguous edges in parallel relation, closing valves hinged to the contiguous edges of; said openings and swinging toward each other, and a stop between the valves andlimiting their inward movement. g

7 2. In a propelling mechanism, a bucket with one side open and the walls of the remalning portion reversely curved longitu curves toward the open side to reduce the resistance during the return stroke, said bucket having openings at each side of the medial line with their contiguous edges extending. in parallel relation, and closing valves hinged to the contiguous edges of said openings and; swinging toward each other, whereby the force, ofthe air currents.

passing through the valved openings is ous edges in parallel relation and spaced 7 equalized and uniform pressure maintained from said medial line, and closure valves during the return stroke. I for said openings hinged respectively to the 1 3. A bucket open at one side with the contiguous edges of the openings and'open-f walls reversely sloping from a medial line ing toward each other. toward the open side, said sloping walls In testimony whereof I aflix my signature. each having an opening with their contigu- JAMES A. HORNE. [11. s.]

Game: of this patent may be obtained for five cent: each, by addrelsing the "commissioner 01' Patch,

z Washington, D. 0." r 

